Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Early the next morning.

The first case analysis meeting was held in the conference room of the Criminal Investigation Detachment.

Compared with previous murder cases, there are very few clues in this dismemberment case.

However, just because there are few clues does not mean that it is difficult to solve the case.

Some cases seem to have many clues and even directly identify the suspect, but solving the case is not easy.

For the police to solve the case, finding the suspect and locking the identity of the other party is one aspect.

Ensuring the integrity of the evidence chain is another aspect.

This complete chain of evidence includes the motive for the murder, the whereabouts of the murder weapon, etc.

Among them, the whereabouts of the murder tools and weapons are particularly important.

In many homicide cases, due to the uncertainty of the crime tools and the unknown whereabouts of the murder weapon, even if the suspect is arrested and brought to justice, even if the other party admits to the murder.

But from the perspective of case investigation, the evidence chain is still incomplete.

During the trial process, hidden dangers will be left for such cases.

In this case, the place where the crime occurred was obviously not the first place where the crime occurred.

"Judging from the current situation, the murderer used a tricycle to transport the body and then burned it."

"The purpose is very simple, which is to destroy the body and eliminate traces of it, so as to hide the process of killing."

Zhang Hui first put forward his own suggestions.

From this point of view, everyone still agrees.

The crime scene was in an open area in a valley and was overgrown with weeds, so it was impossible to identify the footprints left by the murderer.

But the traces left by the tricycle are still relatively clear on some exposed soil.

After the other party killed the person, he transported the body into the mountains and burned it. There should be no major problems in this process.

"And I feel that the other party's journey to transport the body should be relatively far, unlike the residents living around Beishan."

"The action team did not find anything during the surrounding investigation and visits. Where the ashes of the body were found, there were no people around, only the rangers who called the police."

Sun Jun has already sent people around to investigate.

Unless there is a large-scale fire in the deep mountains and old forests, it is indeed difficult to find anything burning.

"The ranger who called the police also happened to be passing by this time."

"Otherwise, if this winter is over and the grass grows next year, no one will notice anything."

The ranger's call to the police was indeed a coincidence.

The place where the murderer burned the body was on the route that the rangers took every year to find the forest.

If the murderer staggered by thirty or fifty meters when burning the body.

Maybe even the rangers won't find it.

Generally speaking, the clues on the action team's side were very limited. Qin Yong turned his attention to Lu Chuan.

Although there were very few ashes left at the scene where the corpse was burned, fortunately, Lu Chuan still had some clues.

Qin Yong's greatest hope was that Lu Chuan could determine the identity of the deceased through analysis of the bones and ashes.

Only when the identity of the deceased is determined can the case be further sorted out based on the deceased's interpersonal network.

Lu Chuan turned on the projector and began to introduce the current survey situation.

"Although there are few residues of the ashes from the burning of the skeletons at the scene, some details can still provide us with some clues for solving the case." Lu Chuan switched the projection and displayed an aerial picture of the entire burning scene.

In the past six months, the current survey office has received new equipment, an unmanned aircraft.

When surveying and taking photos, it is often necessary to take a head-on shot.

But in the past, shooting could only be assisted by some other means.

For smaller sites, it is still okay for the surveyors to take pictures directly from top to bottom, but for larger sites there is no way.

With a drone, it becomes much easier to take photos from above.

"The entire burn mark is irregularly circular, with an average diameter of 0.85 meters."

"What Team Leader Zhang Hui just said is that this is not the scene of the first crime. From the perspective of current investigation, there is evidence to support it."

"The murderer should have dismembered the body before transporting it. Then, after placing the body in a pile at the burning site, he added accelerants and burned it."

"Through the analysis of soil collected from the burning site, it was determined that the accelerant used by the murderer was diesel."

"In addition, we found tire marks from a tricycle around the crime scene."

"Yesterday afternoon, Lao Bai and the second operation team compared the tire tracks."

Zhang Hui nodded: "We checked several large tricycle sales malls in Haizhou City."

"Three types of tricycles were found using tire tracks at the site."

“But tricycle sales are huge.”

"And the time span is long. It is very difficult to find the murderer through the tricycle line."

In fact, what Zhang Hui said was a bit conservative. This is not a question of difficulty, but basically impossible.

Judging from the degree of wear and tear on the tire marks found at the crime scene, they should have been used for one to two years.

However, the degree of tire wear is not only related to the time of use, but also to the degree of weathering and the weight of the cargo.

Therefore, in daily life, buying a tricycle that has been used for one year is not necessarily better than buying a tricycle that has been used for three years. In terms of tire wear, the condition of the tricycle must be better than that of the other party.

Generally speaking, in roughly the same outdoor environment, the impact of weathering on tires is minimal, so tire wear is mainly judged by the number of kilometers traveled.

Lu Chuan took over Zhang Hui's words: "Currently, it is relatively certain that we should be able to lock in three types of tricycle brands."

"However, the error may be relatively large in terms of purchase time. It is not recommended to follow up on this lead."

"Compared with the analysis of tire marks, the analysis of skeletons has two clues."

"First, we found two remaining bones in the ashes of the skeleton. The 1.5 cm long one is part of the sole of the foot, and the other is a phalange bone. It should be the middle finger, but it is the left foot, right foot, or left hand. It’s still the right hand, I can’t tell the difference now.”

Among the remaining bones are fractures of limbs, which is very good information for solving the case.

For any bone in the limbs, the height information of its owner can be calculated.

However, this time, Lu Chuan was unable to give a particularly accurate height range of the deceased.

"Most normal people's left and right hands are not the same size, and the size of their left and right feet are also somewhat different."

With the same height, the left and right hands are different in size, and the left and right feet are different in size. Therefore, there are certain differences in the calculation equations for calculating height based on the size of the bones of the left and right hands and left and right feet.

Nowadays, there is no way to determine the left and right directions of the finger bones and foot bones found in the ashes after the bones were burned, so we can only make vague calculations.

Of course, not all people have a right hand that is larger than a left hand, or a right foot that is larger than a left foot.

Generally speaking, right-handed people have their right hand larger than their left hand and right foot larger than their left foot, while left-handed people have the exact opposite. (End of chapter)